Change the fifth paragraph of the rule “Transportation” to read:

If the target Territory is occupied by another Country or disputed, this is called Hostile Transportation, which costs ten times the basic Transportation rate. In addition, if the population being moved is robots, 2 units in 5 are lost in transit and removed (with any fractional amount lost rounded up to the next integer). The occupied Territory then becomes disputed by the Countries involved. The Hegemonist cannot perform Hostile Transportation unless e, at some point since the beginning of eir Dynasty, controlled or occupied the target territory

This prevents Chronos from using his dominant position to bias the game for the rest of us.  While e can’t win, e can affect who does by attacking people selectively.  This limits him to only colonizing uncontested territories and defending himself. Hopefully, e doesn’t veto it….